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go/internal/lsp/command.go
Rebecca Stambler 1081e67f6b internal/lsp: support running go mod tidy as a code action
This changes adds basic support for running `go mod tidy` as a code
action when a user opens a go.mod file. When we have a command
available like `go mod tidy -check`, we will be able to return edits as
part of the codeAction. For now, we execute the command directly.

This change also required a few modifications to our handling of file
kinds so that we could distinguish between a Go file and a go.mod file.

Change-Id: I343079b8886724b67f90a314e45639545a34f21e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/196322
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-09-20 13:08:46 +00:00

35 lines
972 B
Go

package lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
errors "golang.org/x/xerrors"
)
func (s *Server) executeCommand(ctx context.Context, params *protocol.ExecuteCommandParams) (interface{}, error) {
switch params.Command {
case "tidy":
if len(params.Arguments) == 0 || len(params.Arguments) > 1 {
return nil, errors.Errorf("expected one file URI for call to `go mod tidy`, got %v", params.Arguments)
}
// Confirm that this action is being taken on a go.mod file.
uri := span.NewURI(params.Arguments[0].(string))
view := s.session.ViewOf(uri)
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
if _, ok := f.(source.ModFile); !ok {
return nil, errors.Errorf("%s is not a mod file", uri)
}
// Run go.mod tidy on the view.
if err := source.ModTidy(ctx, view); err != nil {
return nil, err
}
}
return nil, nil
}